Why not making it an in-build feature just as what Avant does.
I don’t like to install so many add-ons in my browser.These add-ons will slow my browser even the whole system.The ways in Avant browser to duplicate tabs are more convenient.you can just click the plus mark or right click.

GEEK TRIVIA

DID YOU KNOW?

Lake Victoria, located at the intersection of Uganda, Kenya, and Tanzania, is so large that if the entire population of Earth went for a swim they’d each have a roomy hundred or so square feet to themselves.